Please recognize the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Geological Survey (USGS) as the source of this
information. NOAA and USGS-authored or produced data and information are in the public domain.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: James V. Gardner

Contact_Organization:

United States Geological Survey (USGS) Coastal and Marine Geology (CMG)

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS, MailStop 999, 345 Middlefield Road

City: Menlo Park

State_or_Province: CA

Postal_Code: 94025-3561

Country: USA

Contact_Voice_Telephone: (650) 329-5469

Contact_Facsimile_Telephone: (650) 329-5411

Contact_Electronic_Mail_Address:jvgardner@usgs.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: Not determined.

Logical_Consistency_Report: Point features present.

Completeness_Report: Complete

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: 0.5 meters

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: 0.05 percent of the water depth

Lineage:

Process_Step:

Process_Description:

The bathymetry and backscatter data were collected along a continuous swath perpendicular to the direction of the ship using a
Kongsberg Simrad EM1002 multibeam sonar system. The data are cleaned of bad navigation and depth readings. The depth
readings are gridded into a common grid. The gridded data are converted to an XYZ ASCII format file (Longitude, Latitude,
Attribute) and the gridded data are converted to ArcInfo GRID format using ArcInfo's ASCIIGRID command.

Process_Date: 20011012

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: James V. Gardner

Contact_Organization:

United States Geological Survey (USGS) Coastal and Marine Geology (CMG)

These data not intended for navigational purposes.
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, these data and information are
provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to
consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public
safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions
undertaken on the basis of, such data and information are the sole responsibility of the user.
Neither the U.S. Government nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any
warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data,
software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned
rights.

Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do
not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability,
content, usefulness, functioning, completeness, or accuracy.

NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA and NODC
cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to
function on a particular system.